Carburetor control



Feb. 13, 1923. 1,445,397.

w. c. JEFFRES.

CARBURETOR CONTROL.

FILED NOV-29, 1921.

Maw? r63 Patented Feb. 13, 1923.

till 1 WALTER CLAY JEFFRES, OF OGALLALA, NEBRASKA.

CARBURETOR CONTROL.

Application filed Nove1nlieri29, 1921. Serial No. 5181602.

citizen of the United- States, residing at Ogallala, in the county of Keith and Stateof Nebraska, has lnvented certain new and' useful Improvements in Carburetor Controls, of which the following is a specification reference being had therein to the accompanying drawings.

The invention relates to carburetor controlling devices for internal combustion engines used in connection with automobiles and has for its object to provide in combination with a device of this character wherein an operating rod is utilized for ad vancing or controlling the throttle valve of the. carburetor, a foot operated device where by the throttle valve may be controlled by the foot of the operator within the auto mobile.

A further object is to provide in combination with a controlling rod for the throttle valve of the carburetor, a cable adjustably connected to said rod and connected to a rockable arm carried by a foot lever and by means of which foot lever the carburetor control rod may be operated against the action of a spring independently of the gas feed rod.

\Vith the above and other objects in view the invention resides in the combination and arrangement or parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that clninges in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings t Figure 1 is a top plan view of a portion oi an engine, the carburetor, and the 0011- trolling mechanism.

Figure 2 is a detailed perspective view of the gas feed rod carried mechanism.

Figure 3 is a sectional view taken on line 33 of Figure 2.

Referring to the drawings, the numeral 1 designates a conventional form of automobile frame and 2 an internal combustion engine carried thereby. The engine 2 is provided with a conventional form of intake manifold 3 and carburetor 4, which carburetor is provided with a throttle valve 5 controlled by a horizontally disposed arm 6. Pivotally connected at 7 to the outer end of the arm 6, is a transversely disposed rod 8, the end 9* of which terminates adj acentthe gas feed rod 10 and is pivotally connected at 11 to an arm 12', which is loosely pivoted on the gas feed rod 10, and has independent movement on the feed rod 10, the purpose of which will presently appear. Secured to the feed rod 10 by means of bolts 13 is a clamp 14, which clamp is U-shaped and positioned on the feed rod 10 in such a manner that its transverse portion 15 will engage the pivoted arm 12 and move the arm in the direction of the arrow a when the carburetor throttle valve 5 is being controlled through the rotation of the gas feed rod 10, said movement of the rod 12 being against or under the influence of the coiled spring 16, one end of which is connected at 17 to the downwardly extending portion 18 of the rod 8, while the other end is connected preferably at 19 to the engine. It will be seen that the movement of the transversely disposed rod 8 may be controlled by the rotation of the gas feed rod 10 in the usual manner.

Rockably mounted in bearings 20 carried adjacent the dash 21 of the automobile is a transversely disposed rock shaft 22. The inner end of the shaft 22 terminates in an upwardly extending pedal 23 and the outer end terminates in a downwardly extending arm 24. Secured at 25 to the lower end of the arm 24 is a cable 26, which cable extends forwardly over a pulley 27 carried by the vehicle frame 1, and thence inwardly preferably beneath the feed rod 10 and has its end connected at 28 to an adjustable collar 29 carried by the rod 8. It will be seen that when the rock shaft 22 is rocked to impart a pull in the direction of the arrow Z) on the cable 26, that the transversely disposed rod 8 may be controlled by the foot of the operator independently of the gas feed rod 10, thereby allowing the operator to control the throttle valve 5, and consequently obviating the necessity of the operator removing his hands from the steering wheel of the machine or to look down in reaching for the gas control rod 10. By adjusting the slidable sleeve 29, the foot pedal 23 may be accurately adjusted, and the device accommodated to different types of vehicles.

From the above it will be seen that an auxiliary foot controlling mechanism is provided for controlling the throttle valve of an internal combustion engine of the type used on a motor drive vehicle, which mechanism is simple in construction and may be easily and quickly applied to any conventional form of automobile.

The invention having been set forth What is claimed as new and useful is:-

A carburetor controlling mechanism for internal combustion engines of automobiles, said mechanism comprising a tranversely disposed operating rod, a pivoted gas feed control rod, a clamping member carried on said gas feed control rod, an arm pivotally mounted on the gas feed control rod, a spring for normally maintaining said arm in engagement with the clamping member Whereby it will follow the dampingmember in its rotation, the carburetor operating rod being pivotally mounted to the pivoted arm, an adjusting collar carried by the carburetor operating rod, a" foot' operated lever and cable connections between the adjustable collar and the foot operated lever, said lever and cable connections forming means Whereby the carburetor operating rod may be'independently controlled by the foot of an op erator.

In testimony whereof I hereunto afiiX my signature.

- WALTER CLAY JEFFRES. 

